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Posted to issues@flink.apache.org by "Jark Wu (Jira)" <ji...@apache.org> on 2020/10/27 11:44:00 UTC

[jira] [Updated] (FLINK-19830) Properly implements processing-time temporal table join

     [ https://issues.apache.org/jira/browse/FLINK-19830?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jark Wu updated FLINK-19830:
----------------------------
    Component/s: Table SQL / Runtime

> Properly implements processing-time temporal table join
> -------------------------------------------------------
>
>                 Key: FLINK-19830
>                 URL: https://issues.apache.org/jira/browse/FLINK-19830
>             Project: Flink
>          Issue Type: Sub-task
>          Components: Table SQL / Runtime
>            Reporter: Leonard Xu
>            Priority: Major
>
> The exsiting TemporalProcessTimeJoinOperator has already supported temporal table join.
> However, the semantic of this implementation is problematic, because the join processing for left stream doesn't wait for the complete snapshot of temporal table, this may mislead users in production environment.
> Under the processing time temporal join semantics, to get the complete snapshot of temporal table may need introduce new mechanism in FLINK SQL in the future.



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